Poacher Turned Gamekeeper

Doug Black, the former chief operating officer at UBS' private wealth division, is teaching the wealthy how to ask their bankers the tough questions.

If you are among the seriously irked -- fed up with your private banker but overwhelmed by the complexity of picking a new one -- then Doug Black is a person you might consider calling.

Black is the former chief operating officer of UBS Private Wealth Management who was sidelined during a management shuffle. In 2010, he left his employer of two decades to found the independent SpringReef Partners, a New Jersey-based consultancy for wealthy families. Over a lunch at the Fat Radish, a brick-walled and tasty locavore...